Pipe-coupling.



UNITED STATES.

PATENT OFFICE.

Specification of Letters Patent.

patented Nov. 6, 1906.

Application filed February 15,1906. Serial No. 301,212.

1'0 all whom it may concern.-

Be it known that I, HARRY DAY, a citizen of the United States, residing at Detroit, in the county of Wayne and State of Michigan, have invented new and useful Improvements in Pipe-Couplings, of which the following is a specification.

This invention is a pipe-con ling designed for making a connection wit a faucet or other pipe havinga smooth exterior surface without screw-threads or the like.| pecially designed for use in connection with an apparatus for cleaning beer-pipes, in which the cleaning com ound is contained in a jar having one pipe w ich is connected to a faucet and another pipe which is connected .to a water-su ply for forcing the compound through the aucet andbeer-pi es. Such faucets are of different sizes, an this invention is designed to provide a coupling which will make a tight connection with a faucet of an ordinary size.

. he inventionis'illu'strated in the accompanying drawings, in which Figure 1 is'a side view of the coupling.

Figi 2 is a central lon itudinal section. eferring specifica ly to the drawings, 6 indicates an inner hollow frusto-conical piece which is squared or made hexagonal at its base, as at 7, so that a wrench maybe applied to hold the same when the parts are screwed together. This piece also terminates at its lower end in a mpple 8 to receive a tube or hose-pipe 9. The upper part of body of the inner piece has;; a'mouth .or opening at the top to receive the faucet, this openin being of sufficient size to take any ordinar aucet, and at the lower end of the inclined portion the iece is exteriorly threaded, as at 10.

T e outer frusto-conical sleeve or shell 1.1 fits over the inner sleeve and has at its upper end an inwardly-projecting flange 12, surrounding the mouth or openin into which the faucet is inserted. 'At its ower end it has a cylindrical ortion threaded to fit upon the threaded cy indrical ortion- 10 of the inner sleeve and is provi ed with studs 13, whereby it may be turned.

is located between t It is esthrough the ring cylindrical two subscribing witnesses.

At 14 is indicated a packing-ring, 'made of rubber or other com ressible material, which l fe upper end of the inner cone and the flange 12 at the top of the outer cone. The central opening in this ring is smaller than the openings in the top of the cones, and it is adapted to fit tightl against the outer surface of any faucet whic may be forced therein. a

In use the parts are loosened by unscrewing the outer cone. The coupling] is then forced up on the faucet to project t e faucet face causes the acking-ring, which rests upon the top of t e inner cone, to be contracted to tight contact against the outer 14. The outer cone 11 is then screwed down, and Its tapered inner sursurfaceof'the faucet, sufficient force-being applied to make a tight t e purpose.

I ckum 1 1 v f 1. i e-cou in com risin a air 0 frusto-cdhibal sl eve screiiied t5 etliier one within the other, the outer sleeve 'aving an inturned flange at its smaller end, and an elastic packing-ring fitting within the outer sleeve between the flange and the small end joint suflicient for of the inner sleeve.-

2. A pipe-couplin com rising av pair of sleeves one of which ts wit in the other, the outer sleeve having a tapered body terminating at one end in an inturned flange and at the other end in a cylindrical portion with internal screw-threads, and the inner sleeve havin a ta ered body and an externallythrea ed cylindrical portion at the large end thereof, with a nipp e projecting from said ortion, and packing-ring between saidange and the small end of the Inner sleeve. In testimony whereof I have signed my name to this specification in the presence of .HARRY' DAY.-

Witnesses: i I

LILLIAN 'A. SPARKLIN, ELIZABETH J. PRICE. 

